Saghi, E., Roudi, F., Taghipour, A., Kiani, M. A., Shabestari, M., Badiei Aval, S., Anjidani, A., Amini, M., & Zakerian, M. "A Social Survey on the Covid-19 Mortality Related to the First 48 Hours of Hospitalization", Health and Development Journal, 13, 2, 2024, 55–59. doi: 10.34172/JHAD.92370